Electric Vehicle Chargers – US market
EV Charing Stations are obliged to comply and be certified according to the US regulation, in particular with two safety standards that cover similar but different products: UL 2594 and UL 2202.
UL 2202 covers products that convert from AC to DC and provide the power to the battery of an electric vehicle.
UL 2594 covers products that do not convert voltage (AC in – AC out) and provide power to an electric vehicle with an on-board charging unit.
UL 2202 Standard for Safety – Electric Vehicle Charging System Equipment
UL 2202 safety requirements cover conductive charging system equipment intended to be supplied by a branch circuit of 600V or less for recharging the storage batteries in over-the-road electric vehicles.
The equipment includes DC off-board and on-board chargers. Off-board equipment may be considered for indoor use only or indoor/outdoor use. On-board equipment is always considered outdoor use.
UL 2594 Standard for Safety – Electric Vehicle Supply Equipment
UL 2594 safety requirements covers conductive electric vehicle supply equipment with a primary source voltage of 600V AC or less, with a frequency of 50 or 60 Hz, and intended to provide AC power to an electric vehicle with an on-board charging unit. This Standard covers electric vehicle supply equipment intended for use where ventilation is not required.
In reference to the above mentioned, the following list of examples of electric vehicle supply equipment are included in this Standard:
- EV Cord Sets – Rated 125V AC maximum, 16A maximum, intended for indoor and outdoor use
- Fastened in place EV Charging Stations – Rated 250V AC maximum, 40A maximum, intended for indoor or outdoor use
- Fixed in place EV Charging Stations – Rated 600V AC maximum, intended for indoor or indoor/outdoor use
- Fixed in place EV Power Outlet – Rated 600V AC maximum, intended for indoor or indoor/outdoor use
